SEO stands for Search Engine Optimization. It is practice of increasing both quality and quantity of website traffic. SEO targets unpaid traffic (known as "natural" or "organic" results) rather than direct traffic or paid traffic. Unpaid traffic can be generated from a variety of searches, including image search, video search, educational search, news search and industry-specific vertical search engines. In other words, SEO is the process of taking steps to help a website or piece of content rank higher on Google.